Thrust-bearing.



. .H,'wYss.

THRUST BEARING.

(Application led Aug. 25, 1898.)

,Patented Apr.- 3,4 |900.

(No Modal.)

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UNITED STATES PATENT OFFICE.

HENRI VYSS, OF LEVALLOIS-PERRET, SWITZERLAND.

-THRUsr-BEARING.

SPECIFICATION forming part of Letters PatentvNo. 646,782, dated April 3, 1900.

I Application iiled August 25, 1898. Serial No. 689,529. (No model.)

To ctllwtom t 111201,14 concern:

Beit known that I, HENRI, WYss, residing at 48 Rue Deguingaut,Levallois-Perret,Switzerland, have invented certain new, and useful Improvements in the Construction of Thrust- Bearings, of which the following is a specification. Y

My invention relates to improvements in the construction of thrust-bearings of any kind, butmore particularly of those employed for the main shafton screw-propelled ships.

In the accompanying drawings, Figure 1 is a cross-sectional view through a bearing. according `to my invention, drawn at line a b of Fig. 2. Fig. 2 is a'portion of the plan of the same, the shaft being omitted. l v

The purposes of my invention are especially to provide means to facilitate the erection of the thrust-bearing and `to-allowv of the shaft being withdrawn Withoutany disturbancev to the rollers and Without taking to pieces.

l is the shaft, and 2 is its flange or collar.

v3 is the body or casing, which is made in one piece.

4 are the cylindrical supporting rollers, preferably of steel. These rollers are kept apart from each other by intermediate spacingfrollers 5 of smaller diameter. @All these rollers are provided with axial pins'or pivots,

as shown on Fig. 1. The rollers 4 are also provided with grooves 6. To keep the axes of these rollers parallel to that of the shaft, there are rings 7, fitting into the said grooves 6.

8 are the conical abutment-rollers, which are also separated 'from each other by intermediate or'spacin g conical rollers 9 of smaller diameter. All these conical rollers are also provided with axial pins or pivots. Moreover, each spacing-roller 9 hasan annular projecting rib 10, engaging in a corresponding annular groove provided on each abutment-roller 8. This device insures a very perfect bearing, as will be hereinafter more fully explained. The axes of both sets of these rollers 8 and 9 are arranged radially around the shaft, so that the surfaces of the abutment-rollers S receive the thrust of the shaft, which they transmit to the body or casing 3. 'Ihe pivots of the conical abutmentrollers 8 serve merely to prevent the falling of these rollers when the shaft is withdrawn, for these pivots do not touch either the ring 12 or the body or casing 3, as shown in the drawings. i As they are conical, they cannot come nearer the axis of the shaft; but, on the contrary, their rotation has a tendency to take them farther from the said axis, lso

that these rollers need not be maintained at Ytheir smaller bases, but at their opposite'ends they must be confined. I would not lengthen the pivots down to the bottom of the recess 15 provided in the body or casing 3, because at the end ofv each pivot would be a continuous friction or slipping action between that end and the bottom of the said recess 15'. To avoid this friction,I provide a projecting circular .rib 16, against which the rollers 8 bear with aproper rolling motion.

As to the spacingfrollers 9, thefirst condition to be vsatisfied isv to keep their axes in the Vplane of the axes of both adjacent abutment in the rollers 8, asabove stated.

To place the various rollers in position when erecting the bearing, the cylindrical rollers 4 and-5 are iirst inserted. Owing to the length of the bearing, which increases with the Weight to be carried, there may be employed two or more sets of Vthese rollers placed end to end, rings 11 being used be tween two sets, into which take the pins or pivots of the rollers. When the shaft is in position, the pivots do not bear on the rings, but when the shaft is Withdrawn the said rin-gs 11 retainthe rollers in their proper places. When the cylindrical bearing-rollers are all in position, I put in place a ring 12,

'hasa diameter equal to the width of the re- 8o taking into Ycorresponding grooves providedthe erection of the bearing is ended and, as it will be seen, the shaft can be withdrawn without any of the rollers falling. A ring 1t prevents dust or the like entering the bearing and lubricant going out of it.

Itis obvious that the dimensions of the conical abutment-rollers may vary, according to the thrust which they will have to transmit to the bearing 3.

Having thus described my invention, what I claim is#- 1. A thrust-bearing comprising a body 3 having recesses therein, cylindrical bearingrollers, conical abutment rollers, spacingrollers between said abutment-rollers, a ring 12 having recesses therein, axial pivots on said abutment and spacing rollers which t within the recesses in said body and said ring but terminate a short distance from the bottom walls thereof, and a rib 1G against which said abutmeutrollers bear, as and for the purpose set forth.

2. A thrust-bearing comprisingr a body 3 having recesses therein, cylindrical bearingrollers, conical abutment-rollers having annular grooves therein, spacing-rollers between said abutment-rollers provided wlth annular ribs which t within said grooves, ar 

